FIELD: medicine.
SUBSTANCE: method is intraoperative and accompanies cochlear implantation; it consists in stimuli supply onto cochlear implant electrodes and response record in the form of stapedius muscle contraction. The record procedure is enabled by means of an impedance metre measuring a counterlateral intact side. It is preceded by tympanometry to determine gas pressure in a middle ear. If observing the pressure value exceeding 350 daPa, pressure in an external auditory canal is increased by extra air fraction introduced in an impedance metre circuit to balance pressure in the external and middle ear. Thereafter, stapedial reflex is recorded.
EFFECT: higher accuracy of reflex limit record, and in turn higher accuracy of adjustment of a voice processor of the cochlear implant.
2 ex, 2 dwg
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